regexp in attr-rewrite confuses me!

i'm finding counterintuitive behaviour for the regexp in the searchfor attr_rewrite. i have the following attr_rewrite attr_rewrite_post-proxy { attribute = Framed-Route searchin = proxy_reply searchfor = ([0-9./]+) ([0-9.]+) ([0-9]+)(.*)

RE: regexp in attr-rewrite confuses me!

in addition, the following suggests an unsual regex process... attr_rewrite attr_rewrite_post-proxy { attribute = Framed-Route searchin = proxy_reply searchfor = ([0-9.]+) ([0-9.]+) ([0-9]+)(.*) replacewith = [%{1}] [%{2}] [%{3}]